Electric signaling device.



No. 863,252. I PATENTED-AUG.13, 190v.

- J. A. BAKER,

ELECTRIC SIGNALING DEVICE.

APPLIUATION FILED NOV.30.1906.

Q vi Hwozez Ag v 7 v mamas JOHN A. BAKER, OF GALVESTON, TEXAS.

ELECTRIC SIGNALING DEVICE.

Specification of Letters Patent.

Patented Aug. 13, 1907.

Application filed November 80, 1906- Serial No. 345,762.

To all whom it may concern:

Be it known that I, JoHN A. BAKER, a citizen of the United'States,residing atGalveston, in the county of Galveston and State of Texas,have invented certain new and useful Improvements in Electric SignalingDevices, of which the following is a specification.

My invention relates to electric signaling devices and has for itsobject the provision of an improved device of this character, comprisinga shelf and means carried by said shelf, which when the shelf is loweredto enable a Watchman, telegraph operator or other person, to enter arecord or report upon a paper pad carried bysaid shelf, completes anelectric circuit to thereby actuate a signal at a distant station.

Further objects and advantages of the invention will be set forth in thedetailed description which now follows.

In the accompanying drawing: Figure 1 is a front elevation of the deviceshowing the shelf in an elevated position, Fig. 2 is a vertical sectionof the parts shown in Fig. 1, Fig. 3 is a like view with the shelf inits lowered position, and, Fig. 4 is a like view looking from theopposite side of the shelf.

Like numerals designate corresponding parts in all of the figures of thedrawing.

Referring to the drawing, the numeral 5 designates a wall or othersupportl Secured to this wall is a casing G, the front of which isslotted as at 7 and 8. An insulating block 9 is secured to the innerwall of this casing and carries a contact spring 10. The lower endofthis contact spring is provided with a V-shaped projection 11 which isadapted to engage with teeth 12 which are formed upon a rearwardextension 13 of a hinge plate 14, said hinge plate being pivoted as at15 to an ear 16, which is carried by the front of the casing. This hingeplate, together with a second hinge plate 17, supports a shelf 18. A padof paper 19 is located upon this shelf and is secured thereto in anydesired manner. The hinge plate 17 has a rearwardly extending portion 20which is adapted to contact with a stop plate 21 to limit the downwardmovement of the shelf.

In Fig. 2, I have shown a wire 22 leading from the spring plate 10 toone of the poles of an electric bell 24 and I have shown a second wire25 leading from the hinge plate 14 to a battery 26. A third wire 2'7leads from said battery to the other pole of the bell.

The operation of the device will now be described. In many largemanufacturing establishments which cover a considerable area, watchmenare stationed at different points about thebuildings and are required tosend in a report to the central oflice at given intervals. They are alsorequired to make a written report at said intervals. The pad 19 servesto receive this written report and when the watchman pulls the shelfdown to the position illustrated in Fig. 4, to write upon the pad 19,the teeth 12 ride over the V-shaped end 11 of the spring 10 and completethe circuit to the bell 24. The number of these teeth may be varied, togive a distinctive signal, which will indicate at the central oflice thelocation of the person who is sending the signal.

The form of the device illustrated in Fig. 2 may be used when an audiblesignal is desired at the central station, but if it be desired toproduce a permanent record at the central station, or at the office of amanufacturing establishment, the devices illustrated in Fig. 4 may beemployed. In this instance, the wires 27 and 22 are connected toelectro-magnets such as are used to ring an ordinary electric bell andhaving a vibratory armature 28. To this armature a pencil 29 may besecured which will mark a permanent record upon a sheet 30 which iscarried by a revolving disk 31, said disk being driven by a clockmechanism, not shown, and contained in the casing 32. With this form ofthe device a record will be made upon this disk, say, every hour and itwill indicate in the morning whether the watchman has been sending inhis reports at proper intervals during the'night. I

This device may also be used by telegraph operators to receiveinstructions concerning certain trains. When the shelf is drawn down torecord these instructions, a signal such as 24 will be actuated in themain oflice from which the instructions were sent.

From the foregoing description, it will be seen that simple andefficient means are herein provided for accomplishing the objects of theinvention, but while the elements shown and described are well adaptedto serve the purposes for which they are intended, it is to beunderstood that the invention is not limited to the precise constructionset forth, but includes within its purview such changcs as may be madewithin the scope of the appended claims.

What I claim, is:

In a device of the character described, a casing having parallel slotsin its front wall, a shelf pivoted to said casing adjacent said slots,said shelf having a rearward extension working in one or said slots, afixed stop within said casing for engz'igement with said extension, saidshell also having a toothed rearwardly extended sector working in theother of said slots, :1 spring contact finger in said casing forengagement with said sector, a source of electrical supply. connectionsbetween said source of supply and said sector and between said source ofsupply and said spring contact finger, and an electric signaling deviceincluded in said connections.

In testimony whereof I aifix my signature in presence of two witnesses.

JOHN A. BAKER.

Witnesses:

W. H. AYERS, M. H. POTTER.

